private void RequestWithPara(Map<String,String> paras,String requestMethod,String api) {

    String stringUrl = "";

    StringBuilder stringBuilder = new StringBuilder();

    stringBuilder.append("?");

    if(paras != null && paras.size() > 0){

      Iterator<Map.Entry<String, String>> iterator = paras.entrySet().iterator();

      while(iterator.hasNext()){

        Map.Entry<String, String> next = iterator.next();

        stringBuilder.append(next.getKey());

        stringBuilder.append("=");

        stringBuilder.append(next.getValue());

        if(iterator.hasNext()){

          stringBuilder.append("&");

        }

      }

    }

    if(stringBuilder.length() > 0){

      stringUrl = BASE_URL + api +stringBuilder.toString();

    }

    else{

      stringUrl = BASE_URL + api;

    }

    try {

      URL url = new URL(stringUrl);

      Log.v(TAG,stringUrl);

      HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();

      httpURLConnection.setConnectTimeout(5000);

      httpURLConnection.setRequestMethod(requestMethod);

      httpURLConnection.setRequestProperty("Accept-Language","zh-CN,zh;q=0.9");

      httpURLConnection.setRequestProperty("Accept","*/*");

      httpURLConnection.connect();

      int responseCode = httpURLConnection.getResponseCode();

      Log.v(TAG,String.valueOf(responseCode));

      if(responseCode == HttpURLConnection.HTTP_OK){

        InputStream inputStream = httpURLConnection.getInputStream();

        bufferedReader = new BufferedReader(new InputStreamReader(inputStream));

        String dataJson = bufferedReader.readLine();

        Log.v(TAG,dataJson);

      }

    } catch (Exception e) {

      e.printStackTrace();

    }

    finally {

      if(bufferedReader != null){

        try {

          bufferedReader.close();

        } catch (IOException e) {

          e.printStackTrace();

        }

      }

    }

  }

这是我根据拉锯哥视频学习边打的代码，查了半小时不知道哪里有问题，下面是我的log图，麻烦大佬们帮小白解惑下